CN103146408A - Composite pulverized coal modifier, modified coal prepared by using composite pulverized coal modifier, and preparation method of modified coal - Google Patents
Composite pulverized coal modifier, modified coal prepared by using composite pulverized coal modifier, and preparation method of modified coal Download PDFInfo
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- CN103146408A CN103146408A CN2013100828915A CN201310082891A CN103146408A CN 103146408 A CN103146408 A CN 103146408A CN 2013100828915 A CN2013100828915 A CN 2013100828915A CN 201310082891 A CN201310082891 A CN 201310082891A CN 103146408 A CN103146408 A CN 103146408A
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Abstract
The invention discloses a composite pulverized coal modifier, a modified coal prepared by using the composite pulverized coal modifier, and a preparation method of the modified coal. The pulverized coal modifier comprises the following components in percentage by mass: 0.1-10% of phenylacetic acid, 0.1-25% of borax, 0.1-30% of boron oxide, 30-50% of boric acid, 0.1-10% of calcium dodecyl benzene sulfonate, 0.1-15% of N-acyl glutamate, 0.1-10% of polyethylene powder, 0.1-20% of atactic polypropylene, 0.1-5% of sodium bentonite or/and calcium bentonite, and 0.1-15% of iron ore concentrates. The modified coal comprises the following components in percentage by mass: 0.01-3% of the composite pulverized coal modifier and 97-99.99% of non-coking coal. The preparation method of the modified coal comprises the following steps of: milling the composite pulverized coal modifier into a powder; crushing non-coking coal; placing the non-coking coal and the composite pulverized coal modifier in a reactor, and adequately mixing and reacting; controlling a temperature in the reactor to be 25-300 DEG C; and controlling the reaction time for more than 30 minutes. The composite pulverized coal modifier, the modified coal prepared by using the composite pulverized coal modifier, and the preparation method for the modified coal disclosed by the invention have the advantage that the mass ratio of the modified non-coking coal occupying coking blended coal is up to more than 70%, so that the resources of coking coal can be saved, and the coking cost can be greatly decreased.
Description
Technical field
The present invention relates to the coal-blending coking technical field, be specifically related to a kind of compound coal dust properties-correcting agent, use the modified coal of this compound coal dust properties-correcting agent preparation and the preparation method of this modified coal.
Background technology
Although world's coal resources are abundant, the coking coal resource is very limited.Therefore, saving the scope use and to enlarge coking coal is subject to extensively paying attention to both at home and abroad.Along with fast development and the blast furnace maximization of China's Iron And Steel Industry, the requirement of STRENGTH ON COKE demand and quality also improves thereupon.China's iron, output of steel were respectively 6.8 hundred million tons, 7.2 hundred million tons in 2012, and 4.43 hundred million tons of coke outputs are amounted to coking with approximately 600,000,000 tons, raw coal.Although coal resources in China is abundant, coal is complete, but there is economically recoverable few (approximately 1,145 hundred million tons of the economically recoverables of verifying by the end of the year 2004), the shortage of high-quality coking coal and strong caking coal are rare, in building and can supplying the reserves of shaft building, high volatile volatile weakly caking coal accounts for 47%, accounts for 51.4% in the coking coal resource that not yet utilizes.Be subjected to the restriction of field conditions and transportcapacity, domestic output has been not enough to satisfy the consumers demand of China's coke.For this reason, since 2009, have to import high price coking coal more than 4,500 ten thousand tons, to satisfy the demand of China's steel industry fast development every year.Thereby exploitation enlarges coking coal resource, increases the high volatile volatile weakly caking coal, non caking coal, and even the consumption of hard coal in coke making and coal blending becomes coking researchist's important topic.
In the coal resources of China, the long-flame coal that metamorphic grade is lower, non caking coal and weakly caking coal, and the higher hard coal of metamorphic grade due to softening when the coking separately, not melting, agglutinating value(of coal) is poor or thickness of colloidal matter layer is thin etc., and reason can not generate block coke, generally do not make coking coal, above coal is referred to as non-coking coal.Maximum with non caking coal, long bituminous coal and brown coal, respectively account for 16%, 15% and 13% of China's total resources, hard coal accounts for 11%.Distributional region is wide, low price, and ash content, sulphur content are low.The non caking coal that the hard coal that exploitation is higher with metamorphic grade and metamorphic grade are lower, weakly caking coal etc. are applied to coking production, not only can reduce the coking cost, and can enlarge the coking coal resource, meet the china natural resources developing long-term strategy.
The aspects such as impact of a lot of scholars of China condition of allocating in coking, consumption, granularity Coke Quality on hard coal, non caking coal and weakly caking coal are studied, numerous studies show that added 3%～5% hard coal or added a small amount of non caking coal or Iight sticky coal can not affect the quality of coke in coal-blending coking, coke quality meets the requirements substantially.In the recent period, both at home and abroad enlarge weakly caking and even mainly comprise aspect the New Cokemaking Processes research of caking coal allocation ratio putting forth effort on exploitation: the novel procesies such as exploitation TAMPING COKING PROCESS, briquetted coal blending coking technology, coal conditioning technique, selectivity pulverizing.In these researchs, the coal damping is shove charge coal moisture control technique, is the preconditioning technique of coking coal; It is optionally to adjust granularity for different coals that selectivity is pulverized, and does not change composition and the performance of coal; Although tamping coking can utilize part weakly caking coal and high volatile volatile coal, low due to the rate of making firm by ramming, scale is less.China's Baosteel satisfies 4000m simultaneously in order to allocate some weakly caking coals into
3The needs of above large blast furnace coke quality are introduced the briquetted coal blending coking technology from Japan, by practice for many years, have obtained some effects.And the consumption of directly allocating non-coking coal in traditional coal-blending coking into is all very limited, uses in a large number above-mentioned coal also there is no good terms of settlement.
Summary of the invention
For the deficiencies in the prior art, technical problem to be solved by this invention is exactly to improve agglutinating value(of coal) and the coking property of brown coal, hard coal, non caking coal, weakly caking coal and long bituminous coal, increases the mass percent of these coals in the coking mixed coal, reduces the cost of coking.
In order to address the above problem,
The invention provides a kind of compound coal dust properties-correcting agent; its component and mass percentage content are: toluylic acid 0.1-10%; borax 0.1-25%, boron oxide 0.1-30%, boric acid 30-50%; calcium dodecylbenzene sulphonate 0.1-10%; N-acyl glutamate 0.1-15%, powder polyethylene 0.1-10%, Atactic Polypropelene 0.1-20%; sodium bentonite is or/and calcium-base bentonite 0.1-5%, fine iron breeze 0.1-15%.
The present invention provides again a kind of modified coal that uses above-mentioned compound coal dust properties-correcting agent preparation, and its component and mass percentage content are: compound coal dust properties-correcting agent 0.01-3%, non-coking coal 97-99.99%.
The present invention also provides a kind of preparation method of modified coal, compound coal dust properties-correcting agent grinds, non-coking coal are pulverized, non-coking coal and compound coal dust properties-correcting agent are put into reactor fully mix, react, reactor temperature is controlled in 25-300 ℃, and the reaction times was controlled at more than 30 minutes.
Above-mentioned non-coking coal is any or multiple mixture in brown coal, hard coal, long bituminous coal, non-caking coal and weakly caking coal.
In the preparation method of above-mentioned modified coal, the granularity≤0.125mm of compound coal dust properties-correcting agent; Granularity≤the 3mm of non-coking coal.
In the preparation method of above-mentioned modified coal, described reactor is the mixer with automatic heating device.
, mixing broken together with coking coal modified coal forms coking mixed coal, the pit kiln production technique coking routinely of packing into, produces coke.The cold conditions index of this coke: shatter strength (M25) 〉=88%, abrasive wear resistance (M10)≤8.5%; Its hot index: reactive (CRI)≤35%, post-reaction strength (CSR) 〉=50%.The coke indices all can reach the standard of national quality standard for metallurgical coke " GB/T1996-2003 ".Said coking coal is one or more in coking coal, rich coal, bottle coal, lean coal.
Because the present invention utilizes compound coal dust properties-correcting agent to the non-coking coal modification, the mass ratio that the non-coking coal of gained modification accounts for the coking mixed coal is up to more than 70%, compared with prior art, the mass percent of non-coking coal in the coking mixed coal significantly increases, not only can save a large amount of coking coal resources, but and decrease coking cost.
Embodiment
Principle of the present invention is: in the mixture of one or more coals in brown coal, hard coal, long bituminous coal, non caking coal or weakly caking coal after compound coal dust properties-correcting agent, compound coal dust properties-correcting agent and coal effect on every side under the temperature field, impel compound coal dust properties-correcting agent to generate the plastic mass liquid phase of low melting point together with coal dust, the plastic mass liquid phase is surrounded brown coal or hard coal or non caking coal or weakly caking coal or long bituminous coal, and infiltration fills the solid particulate gap, promotes its interface between brown coal, hard coal, non caking coal, weakly caking coal, long bituminous coal to be combined; By the continuous variation in temperature field, the degree of mobilization of plastic mass further improves, and makes plastic mass more easily be penetrated into each position of mixed coal, fully surrounds the inert component in coal, and active ingredient and inert component fully combine in carbonization process.Simultaneously, compound coal dust properties-correcting agent by and coal between chemical reaction, cracking and the condensation of molecular chain, and self tension force effect, can change the molecular structure of brown coal, hard coal, non caking coal, weakly caking coal, long bituminous coal, make it have certain cohesiveness and coking behavior, to form crackle few for coal-blending coking together with coking coal, the high grade coke that matrix strength strengthens, void content reduces, coke-blowhole distributes and improves.
In following examples, the granularity≤0.125mm of compound coal dust properties-correcting agent; Granularity≤the 3mm of non-coking coal.
Embodiment 1
The preparation of compound coal dust properties-correcting agent (compound coal dust properties-correcting agent is quantitatively 100kg), its component and mass percentage content are:
Toluylic acid 3%, borax 5%, boron oxide 10%, boric acid 35%, calcium dodecylbenzene sulphonate 9.8%, N-acyl glutamate 8%, powder polyethylene 9%, Atactic Polypropelene 10%, sodium bentonite and calcium-base bentonite 0.2%, fine iron breeze 10%.
Be mixed with compound coal dust properties-correcting agent by above-mentioned share, through ball milling, mixing.
Modification preparation of coal (modified coal is quantitatively 1000Kg), its component and mass percentage content are: the compound coal dust properties-correcting agent 0.05% of the present embodiment, long-flame coal 49.95%, hard coal accounts for 50%.
The preparation method of modified coal is: the compound coal dust properties-correcting agent grinds of the present embodiment, non-coking coal are pulverized, making both, the granularity of powder meets the requirements, with load weighted non-coking coal and compound coal dust properties-correcting agent put into that reactor fully mixes, reaction, modification, reactor temperature is controlled at 30 ℃, stirring velocity is controlled at 20 rev/mins, and the reaction times is controlled at 30 minutes.
The refining of coke: the amount with 1000Kg takes the coking mixed coal, by the modified coal of 10% weighing the present embodiment of coking mixed coal weight, then broken together with the lean coal of 35% coking coal, 30% rich coal, 15% bottle coal, 5% 1/3 coking coal and 5%, the production technique coking routinely of top dress coke oven mixes, packs into.
The cold conditions index detected result of the coke of producing: M25:91.5%, M10:7.2 %; The hot index of coke: CRI:32.5%, CSR:60.9%.
Embodiment 2
The preparation of compound coal dust properties-correcting agent (compound coal dust properties-correcting agent is quantitatively 100kg), its component and mass percentage content are:
Toluylic acid 10%, borax 25%, boron oxide 0.3%, boric acid 30%, calcium dodecylbenzene sulphonate 0.2%, N-acyl glutamate 15%, powder polyethylene 0.2%, Atactic Polypropelene 18%, sodium bentonite 1%, fine iron breeze 0.3%.
Be mixed with compound coal dust properties-correcting agent by above-mentioned share, through ball milling, mixing.
Modification preparation of coal (modified coal is quantitatively 1000Kg), its component and mass percentage content are: the compound coal dust properties-correcting agent 0.1% of the present embodiment, long-flame coal 30%, non caking coal 30%, hard coal 39.9%.
The preparation method of modified coal is: the compound coal dust properties-correcting agent grinds of the present embodiment, non-coking coal are pulverized, making both, the granularity of powder meets the requirements, with load weighted non-coking coal and compound coal dust properties-correcting agent put into that reactor fully mixes, reaction, modification, reactor temperature is controlled at 80 ℃, stirring velocity is controlled at 30 rev/mins, and the reaction times is controlled at 45 minutes.
The refining of coke: the amount with 1000Kg takes the coking mixed coal, by the modified coal of 15% weighing the present embodiment of coking mixed coal weight, then broken together with the lean coal of 30% coking coal, 30% rich coal, 15% bottle coal and 10%, the production technique coking routinely of top dress coke oven mixes, packs into.
The cold conditions index detected result of the coke of producing: M25:89.9%, M10:7.4 %; The hot index of coke: CRI:33.8%, CSR:59.7%.
Embodiment 3
The preparation of compound coal dust properties-correcting agent (compound coal dust properties-correcting agent is quantitatively 100kg), its component and mass percentage content are:
Toluylic acid 0.3%, borax 0.3%, boron oxide 30%, boric acid 50%, calcium dodecylbenzene sulphonate 8.5%, N-acyl glutamate 0.2%, powder polyethylene 0.5%, Atactic Polypropelene 0.2%, calcium-base bentonite 5%, fine iron breeze 5%.
Be mixed with compound coal dust properties-correcting agent by above-mentioned share, through ball milling, mixing.
Modification preparation of coal (modified coal is quantitatively 1000Kg), its component and mass percentage content are: the compound coal dust properties-correcting agent 0.5% of the present embodiment, non caking coal 14.5%, weakly caking coal 20%, long-flame coal 30%, hard coal 35%.
The preparation method of modified coal is: the compound coal dust properties-correcting agent grinds of the present embodiment, non-coking coal are pulverized, making both, the granularity of powder meets the requirements, with load weighted non-coking coal and compound coal dust properties-correcting agent put into that reactor fully mixes, reaction, modification, reactor temperature is controlled at 100 ℃, stirring velocity is controlled at 30 rev/mins, and the reaction times is controlled at 45 minutes.
The refining of coke: the amount with 1000Kg takes the coking mixed coal, press the modified coal of 30% weighing the present embodiment of coking mixed coal weight, then broken together with 20% coking coal, 35% rich coal, 15% lean coal, mix, make firm by ramming, the tamping coke furnace production technique coking routinely of packing into.
The cold conditions index detected result of the coke of producing: M25:91.5%, M10:6.5 %; The hot index of coke: CRI:28.2%, CSR:64.7%.
Embodiment 4
The preparation of compound coal dust properties-correcting agent (compound coal dust properties-correcting agent is quantitatively 100kg), its component and mass percentage content are:
Toluylic acid 2%, borax 2%, boron oxide 8%, boric acid 40%, calcium dodecylbenzene sulphonate 3%, N-acyl glutamate 5%, powder polyethylene 10%, Atactic Polypropelene 10%, sodium bentonite 5%, fine iron breeze 15%.
Be mixed with compound coal dust properties-correcting agent by above-mentioned share, through ball milling, mixing.
Modification preparation of coal (the quantitative approximately 1000Kg of modified coal), its component and mass percentage content are: compound coal dust properties-correcting agent 1%, 5% brown coal of the present embodiment, non caking coal 5%, weakly caking coal 25%, hard coal 30%, long-flame coal 34%.
The preparation method of modified coal is: the compound coal dust properties-correcting agent grinds of the present embodiment, non-coking coal are pulverized, making both, the granularity of powder meets the requirements, with load weighted non-coking coal and compound coal dust properties-correcting agent put into that reactor fully mixes, reaction, modification, reactor temperature is controlled at 200 ℃, stirring velocity is controlled at 30 rev/mins, and the reaction times is controlled at 60 minutes.
The refining of coke: the amount with 1000Kg takes the coking mixed coal, by the modified coal of 50% weighing the present embodiment of coking mixed coal weight, then broken together with 20% coking coal, 30% rich coal, tamping coke furnace production technique coking routinely mixes, makes firm by ramming, packs into.
The cold conditions index detected result of the coke of producing: M25:90.3%, M10:7.5 %; The hot index of coke: CRI:29.0%, CSR:63.5%.
Embodiment 5
The preparation of compound coal dust properties-correcting agent (compound coal dust properties-correcting agent is quantitatively 100kg), its component and mass percentage content are:
Toluylic acid 5%, borax 10%, boron oxide 18%, boric acid 30%, calcium dodecylbenzene sulphonate 5%, N-acyl glutamate 3%, powder polyethylene 1%, Atactic Polypropelene 10%, sodium bentonite and calcium-base bentonite 3%, fine iron breeze 15%.
Be mixed with compound coal dust properties-correcting agent by above-mentioned share, through ball milling, mixing.
Modification preparation of coal (modified coal is quantitatively 1000Kg), its component and mass percentage content are: the compound coal dust properties-correcting agent 2% of the present embodiment, weakly caking coal 33%, hard coal 30%, brown coal 35%.
The preparation method of modified coal is: the compound coal dust properties-correcting agent grinds of the present embodiment, non-coking coal are pulverized, making both, the granularity of powder meets the requirements, with load weighted non-coking coal and compound coal dust properties-correcting agent put into that reactor fully mixes, reaction, modification, reactor temperature is controlled at 250 ℃, stirring velocity is controlled at 30 rev/mins, and the reaction times is controlled at 45 minutes.
The refining of coke: the amount with 1000Kg takes the coking mixed coal, by the coal of 60% weighing modification the present embodiment of coking mixed coal weight, then broken together with the rich coal of 10% bottle coal and 30%, tamping coke furnace production technique coking routinely mixes, makes firm by ramming, packs into.
The cold conditions index detected result of the coke of producing: M25:89.7%, M10:7.1 %; The hot index of coke: CRI:28.5%, CSR:66.5%.
Embodiment 6
The preparation of compound coal dust properties-correcting agent (compound coal dust properties-correcting agent is quantitatively 100kg), its component and mass percentage content are:
Toluylic acid 3%, borax 8%, boron oxide 20%, boric acid 30%, calcium dodecylbenzene sulphonate 5%, N-acyl glutamate 3%, powder polyethylene 3%, Atactic Polypropelene 10%, sodium bentonite and calcium-base bentonite 3%, fine iron breeze 15%.
Be mixed with compound coal dust properties-correcting agent by above-mentioned share, through ball milling, mixing.
Modification preparation of coal (modified coal is quantitatively 1000Kg), its component and mass percentage content are: the compound coal dust properties-correcting agent 3% of the present embodiment, weakly caking coal 25%, hard coal 40%, brown coal 32%.
The preparation method of modified coal is: the compound coal dust properties-correcting agent grinds of the present embodiment, non-coking coal are pulverized, making both, the granularity of powder meets the requirements, with load weighted non-coking coal and compound coal dust properties-correcting agent put into that reactor fully mixes, reaction, modification, reactor temperature is controlled at 300 ℃, stirring velocity is controlled at 30 rev/mins, and the reaction times is controlled at 60 minutes.
The refining of coke: the amount with 1000Kg takes the coking mixed coal, by the modified coal of 72% weighing the present embodiment of coking mixed coal weight, then broken together with 28% rich coal, tamping coke furnace production technique coking routinely mixes, makes firm by ramming, packs into.
The cold conditions index detected result of the coke of producing: M25:88.6%, M10:7.5 %; The hot index of coke: CRI:30.1%, CSR:62.9%.
Claims (6)
1. compound coal dust properties-correcting agent; its component and mass percentage content are: toluylic acid 0.1-10%; borax 0.1-25%, boron oxide 0.1-30%, boric acid 30-50%; calcium dodecylbenzene sulphonate 0.1-10%; N-acyl glutamate 0.1-15%, powder polyethylene 0.1-10%, Atactic Polypropelene 0.1-20%; sodium bentonite is or/and calcium-base bentonite 0.1-5%, fine iron breeze 0.1-15%.
2. a right to use requires the modified coal of 1 described compound coal dust properties-correcting agent preparation, and its component and mass percentage content are: compound coal dust properties-correcting agent 0.01-3%, non-coking coal 97-99.99%.
3. the preparation method of a modified coal claimed in claim 2, it is characterized in that: compound coal dust properties-correcting agent grinds, non-coking coal are pulverized, non-coking coal and compound coal dust properties-correcting agent are put into reactor fully to be mixed, reacts, reactor temperature is controlled in 25-300 ℃, and the reaction times was controlled at more than 30 minutes.
4. the preparation method of modified coal according to claim 3, is characterized in that: the granularity≤0.125mm of compound coal dust properties-correcting agent; Granularity≤the 3mm of non-coking coal.
5. the preparation method of modified coal according to claim 3, it is characterized in that: described reactor is the mixer with automatic heating device.
6. the preparation method of modified coal according to claim 3, it is characterized in that: described non-coking coal is any or multiple mixture in brown coal, hard coal, long bituminous coal, non-caking coal and weakly caking coal.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301773A (en) * | 2013-06-25 | 2013-09-18 | 重庆大学 | Electrothermal type coal powder modifier and method for preparing modified coal by modifier |
| CN103305247A (en) * | 2013-06-25 | 2013-09-18 | 重庆大学 | Wind-heat type coal powder modifier and method for preparing modified coal by modifier |
| CN103450917A (en) * | 2013-09-05 | 2013-12-18 | 武钢集团昆明钢铁股份有限公司 | Method for modifying and coking mill coal |
| CN103773549A (en) * | 2014-01-06 | 2014-05-07 | 日照绿能工贸有限公司 | Coke caking agent and preparation process thereof |
| CN103965929A (en) * | 2014-04-15 | 2014-08-06 | 南京钢铁股份有限公司 | Method for increasing use amount of high-volatile non-caking bituminous coal during coking process |
| CN104293367A (en) * | 2014-09-27 | 2015-01-21 | 武钢集团昆明钢铁股份有限公司 | Coking method of modifying blended coal with non-coking coal |
| CN110540849A (en) * | 2019-09-24 | 2019-12-06 | 上海茜昆实业发展有限公司 | Energy-saving and environment-friendly coke and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1159834A (en) * | 1994-09-29 | 1997-09-17 | 花王株式会社 | Transportability improver for pulverized coal |
| CN1392223A (en) * | 2002-04-30 | 2003-01-22 | 重庆大学 | Coke modifying process |
| CN1580189A (en) * | 2003-08-01 | 2005-02-16 | 首钢总公司 | Waste plastic processing method for increasing coke strength and its apparatus system |
| CN1730628A (en) * | 2005-08-15 | 2006-02-08 | 安阳钢铁集团有限责任公司 | Coke passivator and its usage |
| CN1834213A (en) * | 2005-03-17 | 2006-09-20 | 李之平 | Coal additive and prepn. process |
| CN1923954A (en) * | 2006-09-14 | 2007-03-07 | 中国科学院兰州化学物理研究所 | Catalytic cracking coking mother granule |
| CN101050395A (en) * | 2007-04-26 | 2007-10-10 | 武汉钢铁(集团)公司 | Modifier for coke, method for producing the modifier, and application |
-
2013
- 2013-03-15 CN CN201310082891.5A patent/CN103146408B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1159834A (en) * | 1994-09-29 | 1997-09-17 | 花王株式会社 | Transportability improver for pulverized coal |
| CN1392223A (en) * | 2002-04-30 | 2003-01-22 | 重庆大学 | Coke modifying process |
| CN1580189A (en) * | 2003-08-01 | 2005-02-16 | 首钢总公司 | Waste plastic processing method for increasing coke strength and its apparatus system |
| CN1834213A (en) * | 2005-03-17 | 2006-09-20 | 李之平 | Coal additive and prepn. process |
| CN1730628A (en) * | 2005-08-15 | 2006-02-08 | 安阳钢铁集团有限责任公司 | Coke passivator and its usage |
| CN1923954A (en) * | 2006-09-14 | 2007-03-07 | 中国科学院兰州化学物理研究所 | Catalytic cracking coking mother granule |
| CN101050395A (en) * | 2007-04-26 | 2007-10-10 | 武汉钢铁(集团)公司 | Modifier for coke, method for producing the modifier, and application |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301773A (en) * | 2013-06-25 | 2013-09-18 | 重庆大学 | Electrothermal type coal powder modifier and method for preparing modified coal by modifier |
| CN103305247A (en) * | 2013-06-25 | 2013-09-18 | 重庆大学 | Wind-heat type coal powder modifier and method for preparing modified coal by modifier |
| CN103450917A (en) * | 2013-09-05 | 2013-12-18 | 武钢集团昆明钢铁股份有限公司 | Method for modifying and coking mill coal |
| CN103773549A (en) * | 2014-01-06 | 2014-05-07 | 日照绿能工贸有限公司 | Coke caking agent and preparation process thereof |
| CN103773549B (en) * | 2014-01-06 | 2015-10-28 | 日照绿能工贸有限公司 | Coke increases block agent and preparation technology thereof |
| CN103965929A (en) * | 2014-04-15 | 2014-08-06 | 南京钢铁股份有限公司 | Method for increasing use amount of high-volatile non-caking bituminous coal during coking process |
| CN103965929B (en) * | 2014-04-15 | 2016-07-27 | 南京钢铁股份有限公司 | A kind of method that raising high volatile does not stick bituminous coal consumption in process of coking |
| CN104293367A (en) * | 2014-09-27 | 2015-01-21 | 武钢集团昆明钢铁股份有限公司 | Coking method of modifying blended coal with non-coking coal |
| CN110540849A (en) * | 2019-09-24 | 2019-12-06 | 上海茜昆实业发展有限公司 | Energy-saving and environment-friendly coke and preparation method thereof |
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